Delivery info

Delivery is generally
within 2-10 days, depending
on your location.

30 days returns

Return will not accepted if the product is opened or after use. All returns requests need to be within 30 days of when the original order was received. Original shipping costs will not be refunded.


  • Sender Code: D
  • Thread Size: 3/8" or 9.5mm -18 NPT
  • Terminal Type: 10-32 stud
  • Range: 240° DS
  • Fits: MCM/MIE engines



Sierra's 18-5897 Temperature Sender is designed for use in Mercruiser stern drive applications.

It is interchangeable with Mallory 9-42400, Medallion A-2618-3, Mercruiser Stern Drive 22-811091, 36525, 806490, 806490T, 97257, 97257A1, OMC Stern Drive 3853787, 980613, Stewart Warner 352BC-D, Veethree Seastar 52320S018, and Volvo Penta 3853787.

Each Sierra product meets or exceeds the original equipment part it replaces.



Manufacturer's Technical Support: 1-877-663-8396



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